For Hattori Heiji and Conan, the deduction that followed was practically no challenge at all. After all, the other side had never imagined someone would pull such a crazy stunt as smashing a car window to stop it, so Hattori Heiji and Conan quickly saw through the method of the crime. The only trouble was finding evidence that proved the man was the culprit.
If Fang Zheng had not tipped them off, Conan and Hattori Heiji might have agonized over who had committed the crime. But now that they had identified the culprit, they immediately found the evidence—the completely blank Holmes quiz. Aside from Fang Zheng and Ran, everyone present had received the quiz, and they should all have finished it.
Yet not a single question on his quiz had been answered. As a diehard Holmes fan, he either had given up on competing or had known long ago that the owner was dead...
Well, what came next was naturally the killer breaking down, dropping to his knees to admit he had murdered someone, and explaining his utterly meaningless motive. Not long after he finished his confession, the police Fang Zheng had called arrived at the scene. And so the case came to an end, while Hattori Heiji naturally discovered that Conan's true identity was Kudo Shinichi... There was no need to dwell on that.
On the way back, Conan and Hattori Heiji bickered and fooled around while Fang Zheng watched coldly from the side, smiling without a word. He had already made up his mind that someday, he would completely expose Conan's true identity to Ran. The viewers had never gotten to see that happen in the anime. Though Ran had suspected Conan's identity several times later on, Conan and Kaito Kid had always managed to fool her with